<template>
	<view class="login-container">
		<!-- 提示登陆的图标 -->
		<uni-icons type="contact-filled" size="100" color="#afafaf"></uni-icons>
		<!-- 登陆按钮 -->
		<button type="primary" class="btn-login" open-type="getUserInfo" @getuserinfo="getUserInfo">一键登录</button>
		<!-- 登陆提示 -->
		<view class="tips-text">
			登陆后尽享更多权益
		</view>
	</view>
</template>

<script>
	import {mapMutations,mapState} from 'vuex'
	export default { 
		name:"my-login",
		data() {
			return {
				
			};
		},
		methods: {
			...mapMutations('m_user',['updateUserInfo','updateToken','updateRedirectInfo']),
			// 用户授权之后,获取用户基本信息
			getUserInfo(e) {
				if(e.detail.errMsg === 'getUserInfo: fail auth deny') return uni.$showMsg('您取消了登录授权')
				
				this.updateUserInfo(e.detail.userInfo)
				
				// 获取用户token
				this.getToken(e.detail)
			},
			async getToken(info){
				// 获取code对应的值
				const [err,res] = await uni.login().catch( err =>err)
				
				if(err || res.errMsg !== 'login:ok') return uni.$showMsg('登录失败')
				
				// 准备参数
				const query = {
					code:res.code,
					encryptedData: info.encryptedData,
					iv: info.iv,
					rawData: info.rawData,
					signature: info.signature
				}
				// 调用接口
				const {data: loginResult} = await uni.$http.post('/api/public/v1/users/wxlogin',query)
				console.log(loginResult);
				// if(loginResult.meta.status !== 200 ) return uni.$showMsg('登录失败')
				// 直接将token保存到vuex中
				// this.updateToken(loginResult.message.token)
				// 登陆成功后判断是否有需要回跳的页面
				// this.navigateBack()
				
				// 下面为测试代码
				if(loginResult.meta.status === 200 ) return uni.$showMsg('登录成功')
				const testToken = 'Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ1aWQiOjIzLCJpYXQiOjE1NjQ3MzAwNzksImV4cCI6MTAwMTU2NDczMDA3OH0.YPt-XeLnjV-_1ITaXGY2FhxmCe4NvXuRnRB8OMCfnPo'
				this.updateToken(testToken)
				this.navigateBack()
			},
			// 回跳页面的方法
			navigateBack() {
				if( this.redirectInfo && this.redirectInfo.openType === 'switchTab') {
					
					uni.switchTab({
						url: this.redirectInfo.from,
						complete: () => {
							this.updateRedirectInfo(null)
						}
					})
				}
			}
			
		},
		computed: {
			...mapState('m_user',['redirectInfo'])
		}
	}
</script>

<style lang="scss">
page{
	background-color: white;
}
.login-container{
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	height: 750rpx;
	background-color: #f8f8f8;
	position: relative;
	overflow: hidden;
	
	&::after {
		content: '';
		display: block;
		width: 100%;
		height: 40px;
		background-color: white;
		position: absolute;
		bottom: 0;
		left: 0;
		border-radius: 100%;
		transform: translateY(50%);
		
	}
	
	.btn-login{
		width: 90%;
		border-radius: 100px;
		margin: 15px 0;
		background-color: #c00000;
	}
	.tips-text{
		font-size: 12px;
		color: gray;
	}
}
</style>